CN216721269U

CN216721269U - Parallel-charging string-used photovoltaic conversion controller

Info

Publication number: CN216721269U
Application number: CN202123385812.7U
Authority: CN
Inventors: 杨森林; 汤庆
Original assignee: Nanjing Zhongwan Automation Technology Co ltd
Current assignee: Changzhou Zhongwan Automation Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-10
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a solar energy power generation technical field, and disclose a parallel-charging string uses type photovoltaic conversion controller, including casing and fixed setting and the inside work subassembly of casing, the fixed grafting of lateral wall of casing has the air-supply line, the inside of air-supply line is fixed and is equipped with radiator fan, the inside packing of air-supply line has the drier to pack, the inside of air-supply line is located the drier and packs and the fixed position between the radiator fan and is equipped with and keep off the net, the fixed grafting of lateral wall that the air-supply line one side was kept away from to the casing has a plurality of play tuber pipes, every goes out the tuber pipe and all is connected with elastic telescoping mechanism and is connected with sealed piece through elastic telescoping mechanism, work subassembly is connected with and fills the board subassembly. Under the radiating efficiency's the condition was ensured to this application, can reduce the entering of external dust, moisture, the leakproofness of wiring department is good simultaneously, and is safer to can reduce the unnecessary energy consumption according to opening and close of the height automatic control radiator fan of temperature.

Description

Parallel-charging string-used photovoltaic conversion controller

Technical Field

The application relates to the technical field of solar power generation, in particular to a parallel-charging and serial-use photovoltaic conversion controller.

Background

The photovoltaic conversion controller is an automatic control device which is used in a solar power generation system and controls a multi-path solar cell array to charge a storage battery and the storage battery to supply power to a solar inverter load, adopts a high-speed CPU microprocessor and a high-precision A/D analog-to-digital converter, and is a microcomputer data acquisition and monitoring control system.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the technology, the photovoltaic conversion controller generally leaves heat dissipation holes on the housing for heat dissipation of the controller or is equipped with a heat dissipation fan for auxiliary heat dissipation, but external dust, moisture and the like easily enter the housing through the heat dissipation holes and the heat dissipation fan, and the dust and the moisture enter the working element inside the housing for a long time and contact with the working element, so that the working element is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem that outside dust, moisture etc. easily see through louvre and radiator fan entering casing inside in the order to solve prior art, dust and moisture enter into and contact with the inside working element of casing for a long time, easily cause the working element to damage, and the type photovoltaic conversion controller is used to the cluster of filling that provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a parallel-charging string-used photovoltaic conversion controller, includes casing and the fixed work subassembly that sets up and the casing is inside, the fixed air-supply line that pegs graft in lateral wall of casing, the fixed radiator fan that is equipped with in inside of air-supply line, the inside packing of air-supply line has the drier to pack, the fixed position that is located between drier filler and the radiator fan in inside of air-supply line is equipped with and keeps off the net, the fixed grafting of lateral wall that the air-supply line one side was kept away from to the casing has a plurality of play tuber pipes, every it all is connected with elastic telescoping mechanism and is connected with sealed piece through elastic telescoping mechanism to go out the tuber pipe, the work subassembly is connected with and fills the board subassembly, and fill the lateral wall setting that the board subassembly runs through the casing.

Preferably, the outer side wall of the shell is fixedly connected with a plurality of threaded sleeves corresponding to the interface positions of the charging plate assembly, each threaded sleeve is in threaded connection with a threaded cover, a through hole is formed in the end of each threaded cover, a rubber pad is fixedly connected inside each through hole, and a through hole is formed in the side wall of each rubber pad.

Preferably, the inner wall fixedly connected with box body of casing, the lateral wall of box body is fixed to peg graft and is had temperature sensor, temperature sensor's sense terminal runs through the lateral wall setting of box body and extends to the inside setting of casing, the inside of box body is fixed and is equipped with the singlechip, radiator fan is connected with the monolithic is electromechanical, temperature sensor and singlechip communication connection.

Preferably, every elastic telescoping mechanism all includes the fixed connecting block that sets up inside the air-out pipe, the lateral wall sliding connection of connecting block has T shape pole, the rod end of T shape pole and the lateral wall fixed connection of sealed piece, it is equipped with the spring jointly to fix between the vertical portion lateral wall of T shape pole and the lateral wall of connecting block, the spring cup joints with the horizontal part pole wall activity of T shape pole.

Preferably, both sides of the lower end of the shell are fixedly connected with a group of mounting blocks, and the lower end of the shell is fixedly connected with a plurality of radiating fins.

Preferably, the longitudinal sectional area of the connecting block is smaller than that of the air outlet pipe.

Preferably, one end of the inner wall of the air inlet pipe, which is far away from the cooling fan, is in threaded connection with a blocking cover, an air inlet hole is formed in the side wall of the blocking cover, and a dust screen is fixedly arranged inside the air inlet hole.

Preferably, a sealing gasket is fixedly connected to the side wall of each sealing block, which is close to one side of the shell.

Preferably, the hole diameters of the through hole are gradually decreased from the wire inlet end to the wire outlet end.

Compared with the prior art, the method has the following beneficial effects:

1. this parallel-charging string-used photovoltaic conversion controller, through the casing that is equipped with, work assembly and parallel-charging board subassembly mutually support, can regard as parallel-charging string-used photovoltaic conversion controller to use, through the air-supply line that is equipped with, radiator fan, keep off the net, go out the tuber pipe, mutually support of a plurality of elastic expansion mechanism and sealed piece, not only can assist photovoltaic controller to carry out the work of dispelling the heat, but also can reduce the entering of external dust, moisture, reduce the influence of dust and moisture to work assembly.

2. This parallel-charging string-used photovoltaic conversion controller, through mutually supporting of a plurality of thread bushings, a plurality of screw caps and a plurality of fixed rubber pads that are equipped with, can improve the leakproofness and the stability of external connection and parallel-charging board subassembly connection, improve the security of wiring department, through mutually supporting of box body, temperature sensor and the singlechip that are equipped with, can reduce the unnecessary energy consumption according to opening and close of the high low automatic control radiator fan of temperature.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, under the radiating efficiency's the condition was ensured to this application, can reduce the entering of external dust, moisture, and the leakproofness of wiring department is good simultaneously, and is safer to can reduce the unnecessary energy consumption according to opening and close of the high low automatic control radiator fan of temperature.

Drawings

Fig. 1 is a schematic structural diagram of a parallel-charging-serial photovoltaic conversion controller according to the present application;

FIG. 2 is a rear view of the structure of FIG. 1;

FIG. 3 is a schematic top view of the connection of the threaded sleeve of FIG. 2;

fig. 4 is an enlarged view of a portion a of fig. 1.

In the figure: the device comprises a shell 1, a working assembly 2, an air inlet pipe 3, a heat radiation fan 4, a blocking net 5, an air outlet pipe 6, a sealing block 7, a charging plate assembly 8, a threaded sleeve 9, a threaded cover 10, a fixed rubber pad 11, a box body 12, a temperature sensor 13, a single chip microcomputer 14, a sealing washer 15, a connecting block 16, a T-shaped rod 17, a spring 18, an installation block 19, a heat radiation fin 20, a blocking cover 21 and a dustproof net 22.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Embodiment 1 refers to fig. 1-4, a parallel-charging serial-use photovoltaic conversion controller includes a housing 1 and a working assembly 2 fixedly arranged in the housing 1, a set of mounting blocks 19 are fixedly connected to both sides of the lower end of the housing 1, a plurality of cooling fins 20 are fixedly connected to the lower end of the housing 1, and the two sets of mounting blocks 19 can keep a certain gap with a mounting surface after the housing 1 is mounted, and the cooling fins 20 are matched to facilitate heat dissipation.

The fixed air-supply line 3 that pegs graft of lateral wall of casing 1, the fixed radiator fan 4 that is equipped with in inside of air-supply line 3, the inside packing of air-supply line 3 has the drier to pack, the inside of air-supply line 3 is located the drier and packs and radiator fan 4 between the fixed position that is equipped with and keeps off net 5, radiator fan 4's one end threaded connection that keeps away from in the inner wall of air-supply line 3 has fender lid 21, the fresh air inlet has been seted up to the lateral wall that keeps off lid 21, the fixed dust screen 22 that is equipped with in inside of fresh air inlet, through keeping off lid 21 and dust screen 22, can prevent that the drier from packing from spilling, and play certain dustproof effect.

The fixed grafting of lateral wall of 3 one sides of air-supply line is kept away from to casing 1 has a plurality of play tuber pipes 6, and every play tuber pipe 6 all is connected with elastic telescoping mechanism and is connected with sealed piece 7 through elastic telescoping mechanism, and every sealed piece 7 is close to the equal fixedly connected with seal ring 15 of lateral wall of casing 1 one side, through seal ring 15, can improve the leakproofness when sealed piece 7 contacts with casing 1.

The working component 2 is connected with and fills the board subassembly 8, and the interface of the board subassembly 8 is arranged by penetrating through the side wall of the shell 1, each elastic telescopic mechanism comprises a connecting block 16 fixedly arranged inside the air outlet pipe 6, the side wall of the connecting block 16 is connected with a T-shaped rod 17 in a sliding way, the rod end of the T-shaped rod 17 is fixedly connected with the side wall of the sealing block 7, a spring 18 is fixedly arranged between the side wall of the vertical part of the T-shaped rod 17 and the side wall of the connecting block 16, the spring 18 is movably sleeved with the rod wall of the horizontal part of the T-shaped rod 17, when heat dissipation is performed, the air flow presses the sealing block 17 to move the sealing block 17 to the side far away from the shell 1, so that the air outlet pipe 6 can be opened to perform heat dissipation, when heat dissipation is stopped, under the elastic reset action of the spring 18, the sealing block 7 can be reset to be pressed against the outer side wall of the shell 1 through the T-shaped rod 17, and the air outlet pipe 6 is sealed again. The longitudinal section area of the connecting block 16 is smaller than that of the air outlet pipe 6, and through the arrangement, the connecting block 16 can be prevented from influencing air outlet heat dissipation.

Embodiment 2 is as shown in fig. 1-4 on the basis of embodiment 1, a plurality of thread bushings 9 corresponding to the interface position of the charging plate assembly 8 are fixedly connected to the outer side wall of the casing 1, each thread bushing 9 is in threaded connection with a thread cover 10, a through hole is formed in the end of each thread cover 10, a rubber pad 11 is fixedly connected to the inside of each through hole, a through hole is formed in the side wall of each rubber pad 11, during wiring, an external cable passes through the corresponding through hole, at this time, the through hole can be tightly attached to the side wall of the cable under the action of the rubber pad 11, then, the cable joint is connected with the interface of the charging plate assembly 8, and then, the thread bushings 10 are in threaded fit connection with the thread bushings 9, at this time, the stability of cable connection can be improved, the cable connection is not easy to fall off, the sealing performance of the wiring position can be improved, and the safety is higher.

The aperture in through hole is from inlet wire end to outlet wire end and is the degressive setting in proper order, through this kind of setting, can be convenient for pass through the through hole with the cable joint, improves the convenience of using.

Embodiment 3 is as shown in fig. 1 to 4 on the basis of embodiment 1, a box 12 is fixedly connected to an inner wall of a housing 1, a temperature sensor 13 is fixedly inserted into a side wall of the box 12, a detection end of the temperature sensor 13 penetrates through the side wall of the box 12 and extends into the housing 1, a single chip 14 is fixedly arranged inside the box 12, the heat dissipation fan 4 is electrically connected to the single chip 14, the temperature sensor 13 is in communication connection with the single chip 14, the temperature inside the housing 1 can be monitored in real time through the temperature sensor 13, when the monitored temperature exceeds a preset value, a signal is transmitted to the single chip 14, the single chip 14 controls the heat dissipation fan 4 to work to perform heat dissipation, and when the temperature drops to a normal level, the single chip controls the heat dissipation fan 4 to stop working, thereby reducing unnecessary energy consumption.

In the application, during the use, install casing 1 in the suitable position, wiring, can use after the wiring, when the temperature is higher, radiator fan 4 work, outside air current is inhaled inside air-supply line 3 this moment, can pack the contact with the drier, the drier packs and can dehumidify the drying to the air current, and hold back the foreign matter of partly dust, the rethread keeps off and gets into casing 1 inside behind the filtering of net 5, at last from a plurality of play tuber pipes 6 discharges, can accomplish the heat dissipation, when need not the heat dissipation, a plurality of sealed lumps 7 can seal and block the homonymy play tuber pipe 6, prevent outside moisture from going into from play tuber pipe 6 this moment, and the air current of rushing into 3 entering of tuber pipe all need pass through the drier, so can effectively reduce outside dust and moisture to work module 2 and influence.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. A parallel charging and serial using type photovoltaic conversion controller comprises a shell (1) and a working component (2) fixedly arranged in the shell (1), it is characterized in that an air inlet pipe (3) is fixedly inserted into the side wall of the shell (1), a heat radiation fan (4) is fixedly arranged inside the air inlet pipe (3), desiccant filler is filled inside the air inlet pipe (3), a baffle net (5) is fixedly arranged in the air inlet pipe (3) between the desiccant filler and the heat radiation fan (4), a plurality of air outlet pipes (6) are fixedly inserted into the side wall of the shell (1) far away from one side of the air inlet pipe (3), each air outlet pipe (6) is connected with an elastic telescopic mechanism and is connected with a sealing block (7) through the elastic telescopic mechanism, the working assembly (2) is connected with a charging plate assembly (8), and an interface of the charging plate assembly (8) penetrates through the side wall of the shell (1).

2. The parallel charging and serial charging type photovoltaic conversion controller according to claim 1, wherein a plurality of thread sleeves (9) corresponding to the interface positions of the parallel charging plate assembly (8) are fixedly connected to the outer side wall of the casing (1), each thread sleeve (9) is in threaded connection with a thread cover (10), a through hole is formed in the end portion of each thread cover (10), a rubber pad (11) is fixedly connected to the inside of each through hole, and a through hole is formed in the side wall of each rubber pad (11).

3. The photovoltaic conversion controller for the parallel charging and serial charging of claim 1, wherein a box body (12) is fixedly connected to an inner wall of the casing (1), a temperature sensor (13) is fixedly inserted into a side wall of the box body (12), a detection end of the temperature sensor (13) penetrates through the side wall of the box body (12) and extends into the casing (1), a single chip microcomputer (14) is fixedly arranged inside the box body (12), the heat dissipation fan (4) is electrically connected with the single chip microcomputer (14), and the temperature sensor (13) is in communication connection with the single chip microcomputer (14).

4. The parallel charging and serial charging type photovoltaic conversion controller according to claim 1, wherein each elastic telescopic mechanism comprises a connecting block (16) fixedly arranged inside the air outlet pipe (6), a T-shaped rod (17) is slidably connected to a side wall of the connecting block (16), a rod end of the T-shaped rod (17) is fixedly connected to a side wall of the sealing block (7), a spring (18) is fixedly arranged between a vertical side wall of the T-shaped rod (17) and a side wall of the connecting block (16), and the spring (18) is movably sleeved with a horizontal rod wall of the T-shaped rod (17).

5. The photovoltaic conversion controller for parallel charging and serial charging according to claim 1, wherein a set of mounting blocks (19) is fixedly connected to both sides of the lower end of the housing (1), and a plurality of cooling fins (20) are fixedly connected to the lower end of the housing (1).

6. The parallel-charging-string type photovoltaic conversion controller according to claim 4, wherein a longitudinal sectional area of the connection block (16) is smaller than a longitudinal sectional area of the air outlet pipe (6).

7. The parallel charging string type photovoltaic conversion controller according to claim 1, wherein a blocking cover (21) is connected to one end of the inner wall of the air inlet pipe (3) far away from the heat dissipation fan (4) in a threaded manner, an air inlet hole is formed in the side wall of the blocking cover (21), and a dust screen (22) is fixedly arranged inside the air inlet hole.

8. The parallel-charging and serial-charging type photovoltaic conversion controller according to claim 1, wherein a sealing gasket (15) is fixedly connected to a side wall of each sealing block (7) close to one side of the shell (1).

9. The parallel charging and serial charging type photovoltaic conversion controller according to claim 2, wherein the aperture of the through hole is gradually decreased from the incoming line end to the outgoing line end.